Ventilator.



0'. W. ECKER.

VENTILATOR. v APPLIOATION FILED DEO. 20, 1912. 1,100,234. Patented June 16, 191 1 2 SHEETS-BHBET 1. -IZ

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C. W. ECKER. VENTILATOR. APPLIOATION FILBD DEG. 20, 1912.

'1 1 00,234. Patented June 16, 1914.

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COLUMBIA PLANOGRAPH co.. WASHINGTON. D. c.

UNTED STATES PATENT OFFICE.

CHARLES W. ECKER, OF CANTON, OHIO, ASSIGNOR TO THE BERGER MANUFACTURING- COMPANY, OF CANTON, OHIO, A CORCPORATION OF OHIO.

VENTILATOR.

Specification of Letters Patent.

Patented June 16, 1914.

Application filed December 20, 1912. Serial No. 737,791.

To ali who m it may concern Be it known that I, CHARLES W. ECKER, a citizen of the United States, residing at Canton, in the county of Stark and State' of (Fhio, have invented a new and useful Ventilator, of which the following is a specification.

My invention relates to ventilators and more especially to that class of ventilators provided with a hood which revolves with the changing air currents in order to prevent the wind from blowing into t-he ventilator and thereby check the continuous outward draft from said ventilator.

The device above mentioned may be used not only as a ventilator but for analogous purposes such for instance as a chimney cowl.

The construction of the device is such that the o-utlet from the hood will always be turned away from the wind, thereby, preventing the wind from blowing into the chimney and afiecting the continuous draft through the chimney or ventilator.

The objects of this invention are to provide a ventilator of the character mentioned which will be simple and durable in construction, inexpensive to manufacture and eficient in operation.

A further Object is to provide a ventilator in which no Vane of any description is necessary to cause the hood to be revolved with the changing of the wind, the construction and form of the hood itself being such that it will always be in such a position that the outlet from said hood will be located to leeward or directly away from the wind.

These objects together with other objects readily apparent to those skilled in the art, T. attain by the construction illustrated in the accompanying drawing, although my invention may be embodied in a variety of other forms, the construction illustrated being chosen by way of exanple.

Referring to the drawings-Figure 1 is a side elevation of my ventilator showing the same in use. Fig. 2 is an elevation on an enlarged scale looking into the interior of the hood, parts being broken away to better illustrate the construction. Fig. 3 is a section showing the hood of the ventilator turned at right angles to that shown in Fig. 2. Fig. 4 is a plan view of the spider which supports the hood. Fig. 5 is a plan view of the blank from which the hood is const-ructed.

Similar numerals of reference indicate corresponding parts throughout the several figures of the drawings.

The hood of the ventilator is formed from a sheet metal blank 1, a plan View of which 1s shown in Fig. 5. The blank 1, may best be described as a three sided figure, the lower side of which is curved, the two remaining sides being separated at their upper extremities by neans of a V-shaped notch centrally located and inwardly disposed. The straight edges 2 and 3 are pro- Vided at their converging extremities with the inwardly extending Curved portions 4 and 5. The V-shaped notch extends inwardly from the inner eXtremities of the curved portions 4 and 5 and comprises the straight edges 6 and 7 converging at the point 8 which constitutes the crotch of the V. The curved portions 4 and 5 of the edges 2 and 3 are arcs of a circle struck from the center 8, and tangent to the straight edges 2 and 3. The third edge of the blank is an are 9, struck from the center 8. The straight portions 10 and 11 of this edge are tangent to the are 9 and extend outwardly on either side to the straight edges 2 and 8 respectively. The cut-ofi' edges 6 and 7 are brought together and secured by rivets or equivalent fastening means 12, the hood being bent into the form shown in the several Views of the drawings. The front or windward side of the hood forms onehalf of a cone, the crotch 8 of the V-shaped notch constituting the apeX of the cone and the curved edge 9 forming the base thereof. The straight sides 14 are located in planes tangent to the surface of the semi-cone 13, and extend backward to the outlet of the hood. The straight portions 10 and 11 of the lower edge constitute the lower edges of the straight sides 14 of the hood, and owing to the peculiar shape of the blank they lie in a horizontal plane, and form a continuation of the base of the semi-cone 13, when the hood is bent into its finished form.

Located within the hood is a U-.shaped bracing bracket 15 the arms 16 of which are preferably disposed at an angle across the inner faces of the Straight sides 14 and connected to said straight sides by the rivets or other suitable fastening means 17. In

the crotch of the bracing bracket is located a thrust bearinglS provided With the conical socket 19. Depending downwardly from either side of the bearing 18 are the vertically disposed bars 20, joined at their lower extremities by the yeke 21, which yeke is provided With a Central aperture 22.

The socket 19 is adapted to receive the conical point 23 of the spindle 24, said spin` dle passing through the aperture 22 in the yoke 21 and supported at its lower extrenity by the spider 25\to which it may be connected in any suitable and convenient manner. A cotter pin 32 or its equivalent is located through a suitable aperture in the spindle 24 just above the yeke 21 and is adapted to prevent the yeke from rising upon the spindle 24 and allowing the bearing 18 to become unseated from upon the conical point 23 of the spindle.

The spider 25 consists of the hub portion 26, towhich the spindle 24 is directly con` nected, and the raclial arms 27 having the downwardly extending portions 28 connected to the annular ring 29. The several parts of this spider are preferably cast integral although they may be made in a variety of other forms the specific construction of the spider itself having no particular bearing upon the invention, it only being necessary that some form of support is provided for the'spindle 24. The ring 29 is adapted to fit snugly .upon the upper end of the supporting tube 30, which is preferably made of sheet metal and. is adaptecl to be secured to a suitable support such as the chimney 31 shown in Fig. 1 of the drawing.

' The Wind Striking either of the straight sides 14 of the hood will cause said hood to revolve upon the spindle 24: until the outlet of the hood reaches a position to leeward of the Wind when the hood will come to a rest,`the air .currents Striking upon the forard or' conical face of the hood and being d eflected to either side, along the straight sides 14. It will be seen that the hood Will be caused to revolve when struck by a current of air by reason of its peculiar form, it not being necessary to use a vane to eatch the air currents as is done in the chimney cowls and ventilators such as are in use at the present time.

A straightening head 33 may be provided around the hood at a point near its outer edge. The Object of said head is to reinforce the hood so as to prevent the sides from being bent or twisted out of their normal shape by the force of the wind. Under ordinary circumstances however this bead might not be necessary as the arns 16 of the bracing braeket 15 are designed to support the side faces of the hood and prevent them from being damaged hy action of the Wind.

I claim- 1. Ina ventilator, a hood formed of a blank having two converging straight edges, separated at their converging extremities by a V-shaped notch, said converging extremities being eurved inwardly toward said V- shaped notch in arcs of a eirele struck from the crotch of the \l-shaped notch, and a third edge comprising` a curved portion forming an are of a circ e struek from the croteh of the V-shaped notch and straight portions tangent to said last mentioned are, and means for pivotally supporting said hood.

2. In a ventilator, a rotatable hood formed of a single Sheet of metal hent into such form that its forward face will eonstitute a half of a cone, the rear portion of said hood eomprising a pair of straight sides each of greater area than said half cone, Said straight sides converging at their upper extremities forming a second half cone.

In testimony that I clain the above, l have hereunto subscribed my name in the presence of two witnesses.

CHARLES W. EGKER. lVitnesses:

JOHN H. Bisnor, F. KV. BOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C." 

